US 12,305,901 B2
Systems and methods for active compressor control
Matthew Clark, Rochester, NY (US); Larry D. Burns, Avon, IN (US); Jun Pyo Lee, Zionsville, IN (US); Keyu Li, Shanghai (CN); and Runfu Shi, Shanghai (CN)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
Filed on Jul. 18, 2022, as Appl. No. 17/813,146.
Claims priority of provisional application 63/260,555, filed on Aug. 25, 2021.
Prior Publication US 2023/0064418 A1, Mar. 2, 2023
Int. Cl. F25B 49/02 (2006.01); F25B 40/06 (2006.01); F25B 41/34 (2021.01)
CPC F25B 49/02 (2013.01) [F25B 40/06 (2013.01); F25B 41/34 (2021.01); F25B 2600/2513 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/21 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A refrigeration system configured for controlling operation of a compressor, the refrigeration system comprising:
an electronic expansion device operatively coupled with the compressor; and
a controller operatively coupled with the electronic expansion device and the compressor, wherein the controller comprises one or more processors configured to execute instructions stored on a memory, the instructions when executed, cause the controller to:
control a degree of opening of the electronic expansion device based on a superheat setpoint range, wherein the superheat setpoint range is determined by the controller and is based on operating parameters of the refrigeration system, wherein the operating parameters comprise a value of a suction pressure of a refrigerant entering the compressor and a value of a discharge pressure of the refrigerant exiting the compressor;
determine, via one or more sensors, that an operating point of the compressor is within a threshold distance from a boundary of a plurality of boundaries of an operational envelope for the compressor; and
adjust the superheat setpoint range based on a position of the operating point of the compressor in the operational envelope, in response to the determination that the operating point of the compressor is within the threshold distance, wherein the compressor is a fixed speed compressor.